<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="http://ajax-api.itheima.net/api/data" method="post">
      <input type="text" name="username" placeholder="请输入用户名" />
      <br />
      <input type="text" name="food" placeholder="请输入喜欢的食物" />
      <br />
      <input type="textarea" name="sign" placeholder="请输入个性签名" />
      <br />
      <button type="submit">提交</button>
    </form>
</body>
</html>